We liked the spacious room which is unusual for hotels in Japan, The staff were very helpful during our 16 night stay in Osaka, especially when we don't speak Japanese. They even arranged for our luggage to be transferred to Tokyo.
As for location, the hotel is 2 little blocks from the main Dotonbori food/shopping area. That is, you are just a few minutes walk from all the action/noise. Such an enjoyable stay. Thank you Doutonbori Crystal Hotel and the staff.